allhvasstH

2021-09-23

Given:
Rectangular: $A=200{m}^{2}$, length=x
Express the P as a function of x"

tabuordy

Let the width be w
$A=xw$
$200=xw$
$w=\frac{200}{x}$
$P=2x+2w$
Substitute
$P\left(x\right)=2x+2\left(\frac{200}{x}\right)$
$P\left(x\right)=2x+\frac{400}{x}$

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